Former Detroit Lions receiver Titus Young pleaded guilty Tuesday in San Diego County Superior Court to one count of assault likely to produce great bodily harm.

Young, a Los Angeles native, was immediately sentenced to two years in state prison, according to a spokeswoman for the San Diego County district attorney. The term will run concurrently with the four-year sentence he is serving at the California Rehabilitation Center in Norco for an assault in L.A. in early 2016.

Tuesday’s plea stems from a series of incidents in downtown Carlsbad on Feb. 1. A police report said Young hounded a clothing store employee for drugs. Another call came in a half-hour later from the Pizza Port Brewing Co.

“Subj inside restaurant, trying to start a fight, broke a video game machine,” the report said. “Currently in the street trying to fight people.”

His promising professional football career came to an abrupt end in 2013 after a series of troubling incidents, on and off the field, eventually linked to mental health issues. Several run-ins in law enforcement in Southern California and a slew of criminal charges followed.

Young is eligible for a parole hearing in March, according to state prison records. His attorney in San Diego didn’t immediately return a request for comment.